i'm not saying 7" vinyl is worthless or doesn't have a place, because it does. its sole reason for existing is it is (read: used to be) pretty cheap to produce. i like 7" vinyl the way i like tapes: i acknowledge that both often sound like ass but they have a nice "feel" to them and if you're looking to do a good audio-visual presentation of 2 short songs, 7" is it.
7" vinyl was conceived for cutting 3 minute singles at 45 rpm and it sounds fine for that, especially when it's on a little thicker vinyl than is common for old, cheap singles. it does not sound fine for modern metal bands that do not understand the limitations of the medium and insist on cutting 7 minutes of poorly mastered bass-heavy music at 33 rpm onto flimsy 7" discs. every time someone says "vinyl sucks" it invariably stems from listening to records like this.
whether or not lethal is guilty of this is irrelevant, and also you might be surprised to know i was not the SUPREME DICTATOR of lethal who decided how to release everything, even though the 7" is cool and all.
but never mind all that, are you seriously arguing that 7" vinyl at 33 rpm does NOT have SIGNIFICANTLY worse quality than 12" vinyl at 45 rpm because if that's what you're going to say you're going to be lying in a quite ridiculous manner. just a heads up.